S
M
T
W
T
F
S
26
91°
73°
27
90°
74°
28
88°
73°
29
88°
74°
30
91°
75°
31
93°
76°
1
92°
76°
2
92°
75°
3
91°
74°
4
88°
73°
5
89°
75°
6
92°
73°
7
91°
73°
8
89°
74°
9
90°
72°
10
91°
76°
11
92°
74°
12
89°
73°
13
90°
74°
14
91°
73°
15
88°
74°
16
90°
74°
17
89°
73°
18
89°
72°
19
90°
74°
20
88°
73°
21
Hist. Avg.
90°
73°
22
Hist. Avg.
90°
73°
23
Hist. Avg.
90°
73°
24
Hist. Avg.
89°
73°
25
Hist. Avg.
89°
73°
26
Hist. Avg.
89°
73°
27
Hist. Avg.
89°
73°
28
Hist. Avg.
89°
73°
29
Hist. Avg.
89°
73°
30
Hist. Avg.
89°
73°
31
Hist. Avg.
89°
73°
1
Hist. Avg.
89°
73°
2
Hist. Avg.
89°
72°
3
Hist. Avg.
89°
72°
4
Hist. Avg.
88°
72°
5
Hist. Avg.
88°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Slidell
Slidell's August 2026 forecast shows daily high temperatures ranging from 88° to 93°, with overnight lows between 72° and 76°. The average high for August is 90° with an average low of 74°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Slidell. See also: September | October | November.
